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Harnessing laccases for the synthesis of bisphenol A biopolymers

par Hautphenne, Catherine ;Debaste, Frédéric
Référence Chemical engineering & technology, 38, 7, page (1223-1228)
Publication Publié, 2015-06-10

Article révisé par les pairs

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Résumé :

Oxidative enzymes like laccases are good candidates for the synthesis of biopolymers. Laccases are able to catalyze polymerization of bisphenol A (BPA) to produce BPA oligomers without addition of extra oxygen or mediators in reaction media. A polymerization protocol has been developed to monitor a time-dependent formation of insoluble BPA polymers. This protocol was further optimized with the help of a Doehlert experimental plan considering two factors, i.e., BPA concentration and enzyme activity. The obtained experimental data were found to be fitted by a modified first-order kinetic model. Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), and differential scanning calorimetry (DSC) experiments were performed and BPA polymers were identified as small oligomers with C–O bonds between the different constituting units.